
public class Employee extends Human {

	public static double PI = 3.14;
	
	public double salary;

	public double getSalary() {
		return salary;
	}

	public final void setSalary(double salary) {
		this.salary = salary;
	}
	
	void run(int year){
		System.out.println("call Employee method 'run'!");
	}
	
	void run(int year, int salary){
		System.out.println("call Employee method 'run'!");
		this.salary += salary;
	}

	void work() {
		setSalary(1000);
	}
}
